Forum Discussion
Altera_Forum
Honored Contributor
14 years agoYou only showed the clock going to the M20K(data required path). If the data arrival path is from an input port, then it will be a long data delay because the M20Ks are inside the die, not in the IO cell like a register is. So you'll have a long data delay. Generally that makes timing more difficult. You would most likely want to have a register on your inputs and outputs.